About 8 hours of battery life, Durable endurance The built-in large-capacity carp battery can be used for a long time, and the battery can be charged cyclically No delay, no lag, 30m barrier-free reception 2.4G signal is stably transmitted without serial frequency, can be transmited across walls, and has a long distance. Connect in secondsNo code pairing required, Automatic pairing link Turn on the automatic connection between the transmitter and the receiver. No code matching is required. Turn on it and use it immediately. Intelligent Wireless microphone Support mobile phone/Camera/computer/sound card Automatic boot matching FOR Meeting/Performance/Education/Trainning Super capacity battery Ultra-long distancetransmission Material: Plastic colour: black<br><br>Specification: Dual Package Contents: 2 x Microphones 1 x Receiver<br><br>Specification: Single Package Contents: 1 x Microphones 1 x Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.